How long is a piece of string ???? Needle in a haystack sort of question... Even if you could determine exactly what it should do "After supplying exact specifications with every modification or addition you've done to it = There's so many things that make a car quick down the strip and the right mechanical combinations are just 1 of them... Driver, temperature, fuel, tuning, track conditions etc.etc.etc. Forget the 1/4 that list is a mile long... Yella Terra makes several different stages in cylinder head for the 6, Again different ratio roller rockers, Several different interpretations & grinds on the "xu1" camshaft, The Cylinder head is a 9 port with pacemaker extractors & 3" straight pipe = So it's main purpose on your engine is to be loud only as next to zero back pressure, More than likely way to big for application / stage of tune... So basically we know a little about your cylinder head that last time I checked needed a carburettor/s and was sitting above an engine block, that may or may not be worked over... These are the sorts of things that's need to know in order to even start guessing drag strip times, Or you could just do as most and wait N see what You & your Car are capable of......